Steam-alarm and damper-regulator



(No Model.)

J. G. JONES & O. T. REID.

STEAM ALARM AND DAMPER REGULATOR.

No. 296,839. Patented Apr. 15, 1884 UNITED STATES P TENT @rrrcn.

JOHN C. JONES AND OHARLEST. REID, OF DECATUR, ILLINOIS.

STEAM-ALARM AND DAM PER-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 296,839, dated April15, 1884.

Application filed November 39. 1883.

To aZZ whom it may concern/.-

Be it known that we, JOHN G. J ONES and CHARLES T. REID, residents ofthe city of Decatur, county of Macon, and State of Illinois, haveinvented certain new and useful Improvements in Steam-Alarms and Damper-Begulators, of which the following isa specification. v

The object of our invention is to produce anautomatic alarm forsteam-boilers, which may be relied on to sound an alarm at any distancefrom the boiler whenever a given amountof steam-pressure is obtained,and also to operate the damper of the furnace. The device used by us toaccomplish the abovementioned result will be hereinafter specified byreference to the drawing accompanying and forming partof thisspecification, andin which the various parts are referred to by letteras follows:

The figure in the drawing shows an isometric view of the device.

arepresents a cylinderyprovid ed with apluuger, b, and piston-rod h.

f is a weight secured to the piston-rod by set-screw g.

c (I show a pressure-gage that regulates the supply of steam to thecylinder.

(2 is a drip-valve that permits the condensed steam to escape from thecylinder.

m n represent an escape-pipe that conveys the condensed air and escapedsteam from the upper end of the cylinder to the dischargepipe 0.

pshows the feedpipe, which connects with the boiler, and through whichsteam is conveyed to the cylinder.

(No model.)

i it show an arrangement of wires and bent levers that convey the motionof the pistonrod to a gong or other alarm,

The weight f is adjusted to conform to the steam-pressure as regulatedby gage c d, which pressure can of course be varied as occasion demands.

The operation of our device consists, simply, in conveying the motion ofthe plunger to a gong or other alarm in such a manner that when by avariation in the steam-pressnrethe plunger passes a certain point orpoints, either in ascending or descending, an alarm will be sounded andthe damper of the furnace operated by the same motion. By the use of ourdevice the engineer in charge of the boiler may be warned to a distanceof the .diminished pressure of steam, and, if preferred, such connectionmay be made with one or more gongs, that bot-h a high and low pressurealarm may be given.

It will be readily understood that the arrangement of wires and leversshown in the drawing are merely suggestive, and that any knownarrangement may be used to produce the desired effect.

We claim The combination, in an automatic steamalarm, of pipe cylinderat, plunger 12, piston-rod h, weight f, escape-pipe m a, dripvalve 6,and discharge-pipe 0, as and for the purpose set forth.

JOHN C. J ONES. CHARLES T. REID.

Attest:

' WM. '1. Gussnvs, L. P. GRAHAM.

